Effect of flue gas component and ash composition on elemental mercury oxidation/adsorption by NH4Br modified fly ash

2018 ◽  
Vol 345 ◽  
pp. 578-585 ◽  
Author(s):  
Qiang Zhou ◽  
Yufeng Duan ◽  
Mingming Chen ◽  
Meng Liu ◽  
Ping Lu ◽  
...  
Keyword(s):  
Fly Ash ◽  
Flue Gas ◽  
Elemental Mercury ◽  
Mercury Oxidation ◽  
Ash Composition ◽  
Gas Component ◽  
Modified Fly Ash

Experimental Study on the Spray of Mercury Removal Performance of Flue Gas Desulfurization Wastewater

2013 ◽  
Vol 807-809 ◽  
pp. 1483-1488
Author(s):  
Si Wei Pan ◽  
Nian Tang ◽  
Jiang Jun Hu ◽  
Ji Fu Kuang ◽  
Min Qi ◽  
...  
Keyword(s):  
Experimental Study ◽  
Fly Ash ◽  
Flue Gas ◽  
Cost Savings ◽  
Chloride Ion ◽  
Elemental Mercury ◽  
Flue Gas Desulfurization ◽  
Mercury Removal ◽  
Modified Fly Ash ◽  
Desulfurization Wastewater

For coal-fired power plant boiler flue gas desulfurization wastewater’s actual spraying proposed combination bag house dust while mercury removal process. Experimental study of the coal-fired boiler flue gas spraying chlorine ions and other halogens desulfurization wastewater modified fly ash flue gas mercury performance. Studies showed that desulfurization wastewater fly ash on chloride ion enhanced oxidation of elemental mercury, with the increase in the amount sprayed desulfurization wastewater, flue gas mercury capacity increased. Desulfurization wastewater add another halogen element can promote flue gas mercury performance, the effect of iodine was the most significant, followed by bromine. The desulfurization wastewater as a modified liquid sprayed into the flue modified fly ash, fly ash can improve mercury removal performance, eliminate the need for desulfurization wastewater treatment, cost savings, achieve desulfurization wastewater recycling.

Effect of fly ash composition on the retention of mercury in coal-combustion flue gas

2016 ◽  
Vol 142 ◽  
pp. 6-12 ◽  
Author(s):  
Ping He ◽  
Xianbing Zhang ◽  
Xiaolong Peng ◽  
Jiang Wu ◽  
Xiuming Jiang
Keyword(s):  
Fly Ash ◽  
Flue Gas ◽  
Coal Combustion ◽  
Ash Composition

Removal of elemental mercury in flue gas by Cu-Fe modified magnetosphere from coal combustion fly ash

Fuel ◽  
2020 ◽  
Vol 271 ◽  
pp. 117668 ◽  
Author(s):  
Yang Li ◽  
Lixin Dang ◽  
He Yang ◽  
Jie Li ◽  
Haoquan Hu
Keyword(s):  
Fly Ash ◽  
Flue Gas ◽  
Coal Combustion ◽  
Elemental Mercury

Significance of RuO2Modified SCR Catalyst for Elemental Mercury Oxidation in Coal-fired Flue Gas

2011 ◽  
Vol 45 (13) ◽  
pp. 5725-5730 ◽  
Author(s):  
Naiqiang Yan ◽  
Wanmiao Chen ◽  
Jie Chen ◽  
Zan Qu ◽  
Yongfu Guo ◽  
...  
Keyword(s):  
Flue Gas ◽  
Elemental Mercury ◽  
Mercury Oxidation ◽  
Scr Catalyst

Experimental Research on Fly Ash Modified Adsorption of Mercury Removal Efficiency of Flue Gas

2013 ◽  
Vol 800 ◽  
pp. 132-138 ◽  
Author(s):  
Li Li ◽  
Si Wei Pan ◽  
Jiang Jun Hu ◽  
Ji Fu Kuang ◽  
Min Qi ◽  
...  
Keyword(s):  
Fly Ash ◽  
Removal Efficiency ◽  
Flue Gas ◽  
Power Plants ◽  
Physical Adsorption ◽  
Adsorption Properties ◽  
Mercury Removal ◽  
Immersion Method ◽  
Adsorption Temperature ◽  
Modified Fly Ash

Mercury in the flue gas in coal-fired power plant as the research object using halogen compound as the modified material, the fly ash was modified by chemical immersion method，Study on adsorption agent, the adsorption temperature, modified material and loading on mercury adsorption of flue gas in coal-fired power plants. Experiments showed that, iodine adsorption properties of modified fly ash was the most significant, with the increase of the sorbent dosage, Hg removal efficiency increased, fly ash adsorption amount of change was not obvious, between 80-140°C temperature range, fly ash on mercury existed mainly physical adsorption, the mercury removal efficiency decreased with the increase of temperature, chemical adsorption occurred at 160°C, mercury removal efficiency increased.

Experiment Investigation Absorption of Mercury by Modified Fly Ash Dust Layer Attaching on Filter

2011 ◽  
Vol 393-395 ◽  
pp. 1212-1216 ◽  
Author(s):  
Huan Wang ◽  
Yong Fa Diao
Keyword(s):  
Fly Ash ◽  
Removal Efficiency ◽  
Fixed Bed ◽  
Experimental Studies ◽  
Elemental Mercury ◽  
Mercury Vapor ◽  
Filter Material ◽  
Fixed Bed Reactor ◽  
Dust Layer ◽  
Modified Fly Ash

As to figure out the effect that modified fly ash, which is prepared by fly ash –CaO, and modified fly ash dust layer attached on the surface of the filter material adsorbed elemental mercury, experimental studies are administrated in a laboratory-scale fixed bed reactor system with gaseous elemental mercury produced by a mercury vapor generator and simulated flue gas composition. The experimental results indicated that the adsorption performance of fly ash and CaO relatively poor. The proportion of CaO in the modified fly ash will affected the mercury removal efficiency of the absorbent which prepared by fly ash and CaO. It will be an optimal effect when the blend ratio of the flying ash and CaO is 2 to 1, and the maximum removal efficiency is up to 34%.As the adsorption temperature increases the removal efficiency of the modified fly ash deteriorates. The efficiency of dust layer attaching on the surface of the filter material is getting higher with the larger porosity of dust layer and smaller particle material size.

Impact of Fly Ash Composition on Mercury Speciation in Simulated Flue Gas

2009 ◽  
Vol 59 (11) ◽  
pp. 1331-1338 ◽  
Author(s):  
Ravi Bhardwaj ◽  
Xihua Chen ◽  
Radisav D. Vidic
Keyword(s):  
Fly Ash ◽  
Flue Gas ◽  
Mercury Speciation ◽  
Ash Composition
Sign in / Sign up

Export Citation Format

Share Document